Content-Type: text/html; charset=UTF-8 Double Star Calculator - Orbital Elements

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:15:58

Orbital Elements for DOC1
WDS: DOC1 WDS ID/Discoverer
P: 25.402 Orbital period (years)
a: 0.088 Semi-major axis (arcseconds)
i: 60.5 Inclination (degrees)
Ω: 282.6 Longitude of ascending node (degrees)
T: 2015.138 Epoch of periastron passage (year)
e: 0.401 Eccentricity
ω: 207.0 Longitude of periastron (degrees)
Start-Year: 2013.0 Year
End-Year: 2037.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for DOC1
Position: 131318.76+162147.7 Epoch-2000 right ascension and declination
WDS-ID: 13133+1621 WDS designation
Discoverer Code: DOC1 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 114882 HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 8.13 Magnitude of the primary
V2: 8.93 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2017 Date of last observation
Orbit grade: 5 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for DOC1



WDS 6th Orbit including measures of DOC1

Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)


Ephemeris of DOC1
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.118    286.4
-------------------------
2013.0     0.053     79.8
2014.0     0.055     96.5
2015.0     0.050    113.9
2016.0     0.037    140.2
2017.0     0.030    187.3
2018.0     0.041    229.9
2019.0     0.059    250.6
2020.0     0.076    261.8
2021.0     0.090    269.0
2022.0     0.101    274.5
2023.0     0.110    278.9
2024.0     0.115    282.8
2025.0     0.118    286.4
2026.0     0.118    290.0
2027.0     0.117    293.5
2028.0     0.112    297.3
2029.0     0.106    301.4
2030.0     0.099    306.1
2031.0     0.089    311.7
2032.0     0.079    318.8
2033.0     0.067    328.1
2034.0     0.056    341.1
2035.0     0.048    359.8
2036.0     0.043     24.4






Disclaimer
This result is provided without warranty. For all terms, see the Full Disclaimer. Copyright (C) 2025. The Double Star Calculator and the results generated are licensed under CC BY-NC-SA 4.0.


Acknowledgements
The Double Star Calculator - Orbital Elements makes use of the Washington Double Star Sixth Catalog of Orbits of Visual Binary Stars, maintained at the U.S. Naval Observatory.


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